baber/WOPTO huggingface dataset:
Patent GB-303003-A (GB)
Title: Improvements in or relating to ignition devices for use with fire grates burning solid fuels
IPC: F23Q13/00
Filed: 1928-11-15
Abstract: 303,003. Sulzer FrÞres Soc. Anon. Dec. 24, 1927, [Convention date]. Burners, applications of; flame protectors.- A fire-lighter adapted to be inserted in a grate and to be withdrawn when the solid fuel is ignited, consists of a tubular gas burner a, preferably of the Bunsen type, mounted in an inverted troughshaped member i, having apertures h for the gas flames and adapted to rest on the grate bars g so that the burner is protected from the burning fuel and is cooled by air flowing through the grate. The front end of the member i is tapered to facilitate insertion in the grate.
Patent GB-997331-A (GB)
Title: An improved method of separating and/or recovering arsenic
IPC: C01G28/00
Filed: 1961-09-19
Abstract: Elemental arsenic or its compounds are removed from solids, e.g. poisoned catalysts, pyrites and nickel ores, by passing a stream of hydrogen sulphide and steam or inert gas through the solid at 300-750 DEG  C., thus forming arsenic sulphide which is volatilized from the solid.  The reaction is preferably carried out by fluidizing the particulate solid in the stream of hydrogen sulphide and steam or inert gas. Example (1) refers to a poisoned alumina/nickel sulphide / tungsten sulphide catalyst being treated at 500 DEG  C. in a vertical furnace fitted with a box having transverse baffles which collect the arsenic sulphide entrained in the effluent gases.  Example (2) refers to arsenic containing pyrites being treated at 550 DEG  C. with hydrogen sulphide and nitrogen.  Examples (3) and (4) refer to a sulphur free nickel ore and pyrites being treated with hydrogen sulphide and steam at 700 DEG  C.ALSO:Spent catalysts, e.g. alumina/nickel sulphide/tungsten sulphide, are freed from arsenic by contacting with a flow of hydrogen sulphide and steam or an inert gas at 300-750  DEG C.  The catalyst may be fluidized by the reacting gas stream.
Patent GB-323318-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F17/34
Filed: 1928-11-15
Abstract: 323,318. Goodman, K. C. Nov. 15, 1928. Roulette and other games of chance.-Coinfreed apparatus, more especially for amusement purposes, is contained between a sloping base plate a, mounted on a casing adapted to be attached to a wall or otherwise supported, and an opaque glass front plate supported on a frame b on the base plate a. The figure shows the apparatus with the front plate removed. A coin w is inserted in a slot n<1> in the top of the machine, and passes into a shoot m<1> which has, an opening of such size that coins smaller in diameter than that required to operate the apparatus fall through into the casing, from which they may be returned to the operator. The coin w passes through the shoot m<1> between the grooved periphery of a rotatable member f and the inner concave face of a lever e<1> pivoted at f<1> and having a projecting handle portion j<1> extending outside the casing, and comes to rest against a stop k<1>. The member f may be rotated by pressing the handle j<1> and this is preferably done several times to get up the desired speed before the pressure employed is such as to push the coin over the top of the member f, from where it is guided, through a shoot s<1> and coin guide t<1>, to a coin-receiving and distributing member l, into one of a number of pockets 1 - - 8 in the periphery of which it drops. The member l is driven, preferably through chain and sprocket reduction gearing having a ratio of 7 to 1, from the member f. One or more of the pockets, such as the pockets 4, 5, 8, 2 are shaped such that the coin is completely received and retained until the pocket mouth is at the bottom, when it falls, under gravity, between two shoots o<1>, q<1>, into a coin-receiving pocket in the bottom of the casing. Pockets 3, 7 are shaped so as to carry the coin, if received therein, past the shoots o' and q<1>, until it falls under gravity and rests between a stop n<11> and the side of the shoot q<1> flat against the base a<1>, which is below the bottom of the underface of the member l. Coins may collect in this position one above the other, face to face, up to say, six in number to form a pool, coins in excess passing over the side of the shoot q<1> to the coin box. In the case of pockets 1, 6, the coin is retained only until it reaches the shoot o<1>, when it drops out and is returned to the operator. One pocket 1, is of less depth than the diameter of the coin, which in its passage, trips a lever c<11>, against a counterweight, to release, through a system of levers and links, the stop n<11> which retains the pool, and releases same through the shoot q<1>, to the operator. The opaque glass front plate has transparent portions through which portions of the members f, l may be viewed and the speeds observed. Coin deflector plates x<1> and w<11>, respectively, are provided at the discharge to and discharge from the member l.
Patent GB-1198548-A (GB)
Title: Improvements in or relating to Internal Combustion Engine Valve Gear.
IPC: F02F1/24
Filed: 1968-07-15
Abstract: 1,198,548. I. C. engine valve gear; lubricating. SOC. ANON. ANDRE CITROEN. July 15, 1968 [July 19, 1967; June 11, 1968], No.33628/68. Heading F1B. Each valve 30, 31, Fig. 4, is operated by a rocker 40, 41 actuated by a cam 20 on a cam-shaft through a cup-shaped tappet 60 mounted in a bore in the cylinder head C and the rocker axis is perpendicular to the axis of the valve and not parallel to the cam-shaft axis. The tappet axis is parallel to the common perpendicular to the cam-shaft axis and the rocker axis. The tappet 60 is provided with a connecting member 70 engaging the ball-shaped end of the rocker. The connecting member may be a dished plate (700), Fig. 6, (not shown), bearing against the open end of the cup-shaped tappet (60). Four rockers 40, 41, 42, 43, Fig. 8, actuating pairs of valves in a pair of adjacent cylinders are mounted on respective shafts supported at one end in a single bracket 71 bolted to the cylinder head, and at the other end by respective brackets 77, 84, 76, 83. The rockers are lubricated by oil supplied through passages 88 and 90, Fig. 10, in the cam-shaft 89, passage 92 in the cylinder head, passages 94, 97 and 100 in the bracket 71 and passages 101 and 102 in the rocker shafts.
Patent GB-619557-A (GB)
Title: Stabilizers for photographic emulsions
Filed: 1946-11-12
Abstract: A 7-hydroxy-1 : 3 : 4-triazaindolizine of the formula <FORM:0619557/IV(b)/1> wherein R and R1 are H or alkyl, alicyclic, aryl or heterocyclic groups and R2 an amino, hydroxy, carbalkoxy, alkyl, alicyclic, aryl or heterocyclic group, R2 being other than alkyl, when R and R1 are H, are obtained by heating a b -keto ester, a malonic ester, or a mononitrile of a malonic ester with a 3-amino-1 : 2 : 4-triazole of formula <FORM:0619557/IV(b)/2> The reactants may be refluxed together in a solvent such as glacial acetic acid, pyridine, or alcoholic alkali.  b -Keto esters specified are acetoacetic, benzoylacetic, a -ethylacetoacetic, a  - phenylacetoacetic, ethylnicotinoacetic, g -cyclohexanoacetic and oxalacetic esters.  Malonic esters and mononitriles specified are dimethyl and diethyl malonates, diethyl methylmalonate and ethylmalonate, methyl and ethyl cyanacetate, and ethyl a -methylcyanacetate.  The 5-methyl- and 5-phenyl-derivatives of 3-amino-1 : 2 : 4-triazole may be used. The following 7-hydroxy-1 : 3 : 4-triazaindolizines are specified: 6-ethyl-5-methyl-, 6-ethyl-2 : 5-dimethyl-, 5-methyl - 2 - phenyl-, 2 - methyl - 5 - phenyl-, 5 - phenyl-, 2 : 5 - diphenyl-, 2 - isopropyl - 5 - methyl-, 1 : 5-dimethyl-, 5-hydroxy-, 5-amino-, 5-carbethoxy-, 5-(b -pyridyl)-, 2-cyclohexyl-5-methyl-, 2-(a -furyl)-5-methyl-, 5-cyclohexyl-, 6-cyclohexyl-5-methyl-, 6-(a -furyl)-5-methyl- and 5-methyl-6-phenyl.
Patent GB-1007577-A (GB)
Title: Improvements in and relating to polyolefins
IPC: B29C48/08
Filed: 1964-08-18
Abstract: A process for rendering the surface of a polymer of a monoolefin adaptable to adhere to a coating comprises treating at least one surface of the polymer so that the surface is permeated by pores having an average diameter of from 1 to 10 mucrons, the internal surfaces of the cells of the polymer being exposed.  The monoolefin polymer, containing a foaming agent in the surface area, may be passed over a source of heat so that the surface temperature of the polymer is such that the foaming agent is activated and such that the viscosity of the polymer is low enough to allow the bubbles formed to break the surface.  A skinned monoolefin foam is particularly suitable and preferably the heating is such that only a portion of the skin depth is melted. Alternatively, the surface layer of a conventional closed cell foamed polyolefin sheet can be ground away using a microprecision surface grinder.  Polyethylene and polypropylene are particularly mentioned as suitable polyolefins. The product of the process of the invention can readily be printed upon or coated with a vinylidene chloride polymer.ALSO:Printing ink and vinylidene chloride polymers can be applied to the surface of a polyolefin sheet which has been treated so that the surface of the polyolefin polymer is permeated by pores with an average diameter of 1-10 microns, the internal surfaces of the cells of the polymer being exposed.  The polyolefin sheet may contain a foaming agent in the surface area so that when it is passed over a source of heat the foaming agent is activated and the bubbles of gas formed just break the surface of the polymer. A skinned polymer with a foamed core can be used, in this case the heating is preferably such that only a portion of the skin is melted.  Alternatively the surface layer of a conventional foamed polyolefin sheet may be ground away using a microprecision surface grinder.  Suitable polyolefins are polyethylene and polypropylene.  Examples describe coating treated polyethylene with a vinylidene chloride-acrylonitrile copolymer from a 15% solution in a 3 : 1 mixture of acetone and methyl ethyl ketone.
Patent GB-181673-A (GB)
Title: Method of effecting caustic fusions
IPC: C07B61/00
Filed: 1921-12-14
Abstract: The fusion of organic compounds with caustic alkali is effected in the presence of liquid hydrocarbons such as kerosene; less alkali than usual is employed.  The process may be applied to condensations reactions, or the replacement of the sulphonic group or chlorine atom by hydroxyl.  Examples are given of the preparation of alizarin from 2-chloranthraquinone or sodium anthraquinone-2-sulphonate, anthrarufin from potassium anthraquinone-1 : 5-disulphonate, and indigo from sodium phenylglycine or hydroxyethylaniline.  The production of the following dyes is also specified:-Indanthrene violet R from chlorbenzanthrone, Anthraflavone G from methylanthraquinone, Indanthrene gold orange G from 2 : 21-dimethyl-1 : 11-dianthraquinonyl, Indanthrene yellow G or Indanthrene blue R from 2-aminoanthraquinone, and Indanthrene dark blue BO from benzanthrone.  The production of triphenylmethane dyes, indophenols, and sulphur dyes also is referred to.
Patent GB-209581-A (GB)
Title: Improvements in inhaling apparatus
IPC: A61M11/06
Filed: 1922-12-11
Abstract: 209,581. Austin, E. D. Dec. 11, 1922. No Patent granted (Sealing fee not paid). Air-pressure sprayers. -An inhaler comprises a hand air pump d to the end a of which is screwed a fitting b which carries a narrow tube c concentric with the pump barrel. This tube prevents liquid from being drawn from the vessel k into the pump. The piston-rod of the pump comprises a tube g carrying a cup leather h secured by a nut i against a plate j. A glass vessel k is secured by a collar l to the base a of the pump which also carries the outlet in for atomized liquid. The hollow pump handle n contains cotton-wool for filtering the air from the pump which passes down the tube c to the atomizer e which is provided with a recess o and conical outlet p. A suitable facepiece may be attached to the outlet m when required.
Patent GB-507001-A (GB)
Title: Improvements in caps or covers for the filler openings of petrol or like tanks
IPC: B60K15/04
Filed: 1937-12-07
Abstract: 507,001. Latch fastenings. STEVENS, T. A. Dec. 7, 1937, No. 33770. [Class 44] [Also in Group XVII] A cap or cover, e.g. for the filler opening of a motorvehicle petrol tank comprises a hinged cap 3, Fig. 2, carrying bolts 6, 7, Figs. 2 and 9, pressed outwardly by springs 14, 15 and retractable by the raising of a slide 20, which engages shoulders at the ends of slots in the bolts. The slide 20 is retracted by a spring 22 and raised by a lever 23 hinged loosely to the cap 3 near its pivot and serving also to raise the cap. The bolts are bevelled at their upper and lower surfaces and a washer , 5 ensures a tight joint.
Patent GB-300966-A (GB)
Title: Safety device for gas burners
Filed: 1928-11-19
Abstract: 300,966. Beck, K. Nov. 21, 1927, [Convention date]. Thermally-actuated valves.-A valve: device for controlling the supply to a gas burner and adapted to close in the event of the flame being extinguished comprises a cock h closed by a spring e upon the release of a horizontal sliding catch b actuated by a bimetallic strip a arranged in proximity to the burner. The catch slides through an oblong vertical eye on the rim of the gas apparatus and engages a toothed sector c on the handle of the cock so that the cock may be held in a partly closed position.
Patent GB-1144458-A (GB)
Title: Improvements in or relating to gear systems
IPC: F16H37/00
Filed: 1966-07-28
Abstract: 1,144,458. Epicyclic toothed gearing. FICHTEL & SACHS A.G. 28 July, 1966 [31 July, 1965], No. 33949/66. Heading F2Q. In a two-stage planetary gear having an input shaft 14, coaxial output shafts 62, 54 are respectively connected to the planet carriers 30, 52 of the two stages 22, 24 so that they are driven at different speeds. An internally toothed annulus gear 34 fixed in the casing 10 forms the reaction member for both stages. The first stage 22 includes a sun gear 26 formed on the input shaft 14, and stepped planet pinions 32. The second stage 24 has an input sun gear 60 splined to an end plate 40 of the first stage planet carrier 30. The casing 10 is secured to a drive motor by bolts 12.
Patent GB-741271-A (GB)
Title: Improvements in automatic loading firearms provided with a sliding system for temporarily locking the breechblock in closed position
IPC: F41A3/78
Filed: 1953-12-07
Abstract: 741,271. Automatic loading firearms. BREVETS AERO - MECANIQUES SOC. ANON. Dec. 7, 1953 [Dec. 24, 1952], No. 33985/53. Class 92 Relates to an automatic loading firearm with an Hispano action in which reciprocating slide plates 6 Figs. 2, 3 connected by a cross piece 7 carrying the firing pin have limited movement relative to the movable breech block 3 and serve to maintain the breech block in its closed position by engagement with a locking piece during further forward movement of the slide plates 6 to effect the firing. In order to reduce the force of impact of the plates 6 with the front abutment 17 of the breechcase and thus to check the rebound to avoid premature unlocking of the breech block 3, spring urged weights 13 are mounted in the breech case for oscillatory motion between abutments 14, 15 and abutments 11 on the plates 6 strike abutments 12 on the weights 13 just prior (see Fig. 4) to the impact of the plates 6 on the breech case abutment 17 so that during subsequent limited rebound of the plates 6, the kinetic energy imparted to the weights 13 is dissipated in oscillatory motion and impact on abutments 14, 15: on return movement of the plates 6 under the action of the recuperator spring 4 and contact again with weights 13, the latter return only a small part of the energy received from the plates 6 during their initial contact. The movements of weight 13 may take place in directions other than parallel to that of sliding plates 6 in which case, instead of providing abutments 12 rigid with the weights there is interposed between these parts an operative connection adapted to transmit to the weights the impact received by the abutment.
Patent GB-938306-A (GB)
Title: New quinazolone compounds
Inventor: PETERSEN SIGFRIED
Filed: 1961-09-22
Abstract: The invention comprises quinazolone derivatives (soporific and narcotic agents) of the general formula <FORM:0938306/IV(a)/1> (wherein R is a hydrogen atom or a C1-4 alkyl radical, X is an acylamino radical wherein the acyl residue is derived from carbonic acid, thiocarbonic acid or a carboxylic acid, R1 is a C1-4 alkyl radical and n is 1 or 2), and their preparation by acylating a compound of the general formula <FORM:0938306/IV(a)/2> to convert the or each amino group into a group X.  The starting materials may be prepared by reducing the corresponding nitro compounds.  3- Carbethoxyamino- 6- nitroquinazolone-(4) is prepared by condensing 5-nitroanthranilic acid hydrazide-o -carboxylic acid ethyl ester with formic acid.  2- Methyl- 3- carbethoxyamino- 7- nitro-quinazolone-(4) is prepared by boiling 4-nitro-anthranilic acid with acetic anhydride, and heating the resulting anhydro-(N-acetyl-4-nitroanthranilic acid) with hydrazine-monocarboxylic acid ethyl ester.  The 6-nitro- and 6,8-dinitro-compounds are prepared similarly.  Specification 896,846 is referred to.
Patent GB-1389300-A (GB)
Title: Magnetic separator and apparatus
IPC: B03C1/03
Filed: 1972-07-20
Abstract: 1389300 Magnetic separators NIPPON MINING CO LTD and S YASHIMA 20 July 1972 [20 July 1971 (2) 28 July 1971 11 Jan 1972] 34099/72 Heading B2J A wet type magnetic separator comprises a fixed magnet 1, constituted by a plurality of discoid permanent magnets each having similar recesses aligned to form an axially extending recess in the generally cylindrical magnet assembly which co-operates with a rotary drum 2 of non-magnetic material, the drum 2 being provided with a plurality of discrete pole pieces 3, e.g. of soft iron which, when within the influence of the magnet 1, help to produce a high flux density at the surface of the drum 2. The pole pieces 3 may comprise:- rods or spheres fixed by adhesive or welding to the drum 2, as shown; loose rods or spheres which in use are held against the drum 2 by the attraction of the magnet 1 (Fig. 2, not shown); rods or spheres held against the drum 2 by a covering net which extends wholly or partly round the circumference of the drum (Figs. 3A and 3B, not shown); an endless chain net, or a plurality of endless chains, co-operating with other rollers associated with the drum 2; a plurality of continuous or discontinuous rings attached to the surface of the drum 2 or fitted into grooves or apertures in the surface of the drum (Figs. 8 to 10, not shown); or a combination of rings and spheres (Fig. 11, not shown). Material to be treated is fed from a supply 4 to the drum 2, non-magnetic particles being collected in a hopper 5 whilst magnetic particles, whose removal from the drum is sided by a partition board 19, sprinklers 7b and an air blast from a pipe 20, are collected in a hopper 8.
Patent GB-1036566-A (GB)
Title: An amplifying arrangement
IPC: G05D3/14
Filed: 1963-08-28
Abstract: 1,036,566. Electric retroactive control. CARL SCHENCK MASCHINENFABRIK G.m.b.H. Aug.28,1963 [Aug. 30,1962], No.34100/63. Heading G3R. [Also in Division H3] In an amplifying system of the type in which the signal to be amplified is caused to modulate a carrier frequency so that it can be amplified in an A.C. amplifier the latter comprises preliminary stages operating in a linear manner, between which and subsequent stages of A.C. amplification the carrier frequency is demodulated, the resulting demodulated signal passed through filter networks which remove undesired interfering components from the signal, and the latter is then re-converted to a modulation on a carrier frequency before passing to the subsequent stages of A.C. amplification. The arrangement is described as applied to a control system of the retro-active type in which the input to the preliminary stages 11 of the A.C. amplifier comprises transformer 10 the primary of which is fed from three bridge circuits 2, 3, 4 respectively, in series. The bridges are supplied with the carrier frequency from separate secondary windings on transformer 1; bridge 2 includes an arm whose impedance is varied by a quantity to be measured, bridge 3 comprises a compensating bridge and bridge 4 provides negative feedback. The output of preliminary amplifier 12 is fed via transformer 12 to a mechanical rectifier 13 which is driven from the carrier frequency source via a secondary winding of transformer 19 and phasing network 17. The demodulated output from rectifier 13 is fed through a filter network which may include R.C.filters and/or twin-T networks (not shown) whose purpose is to remove spurious signals from the voltage which it is desired to amplify, and this is then applied to a mechanical chopper-type modulator 14 which as shown is driven with carrier frequency from the secondary winding of transformer 19 via phasing network 18. The modulated carrier frequency from modulator 14 is fed via transformer 15 to the final A.C. amplifier stages 16, the output of which is supplied to one winding of motor 8, the other winding of which is fed with carrier frequency from a tertiary winding on transformer 19. Motor 8 drives by means of gearing 9 a potentiometer 5 whereby the balance of feedback is adjusted so as to balance out the output from bridges 2, 3: ganged to the potentiometer is an indicator 7 and also a further potentiometer 6 whereby a variable control voltage is fed via differentiating network 20 into the demodulated signal occurring between rectifier 13 and modulator 14, whereby a D.C. voltage proportional to the speed of operation is added in to suppress oscillations in the control loop. It is stated that the modulator 14 may be driven at a frequency which differes from that applied to the bridges 2, 3, 4 and rectifier 13.
Patent GB-367386-A (GB)
Title: Improvements in and relating to the production of photographic images
IPC: G03C7/46
Filed: 1930-11-12
Abstract: 367,386. Photographic sensitive materials. CRISTIANI, L., 15, Via Revere, Milan, Italy. Nov. 12, 1930, No. 34106. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 13, 1930.] [Class 98 (ii).] Layers composed of cellulose hydrate or regenerated cellulose, e.g. that known under the registered Trade Mark " Cellophane," are coloured with dyes and sensitized with bichromate. The layers may then be printed upon from a diapositive or negative, or employed direct in a camera, the colour being removed from the places where the light has not reached, and in proportion to the light action. Suitable dyestuffs are fast Guinea red, Agfa yellow, and cyanographic blue. Three layers in different colours may be superposed to give a three-colour result. The process may be applied to kinematograph films. Reference has been directed by the Comptroller to Specification 354,274.